Lifting appliance for lifting mold

Abstract

The utility model relates to the technical field of mechanical lifting appliances, in particular to a lifting appliance for lifting a mold, which comprises a cross beam, lifting arms arranged at two ends of the cross beam in a sliding manner, lifting plates fixedly arranged at the bottom ends of the lifting arms, and an adjusting component for adjusting the distance between the two lifting arms, the adjusting assembly comprises synchronous rods, a fork arm, a rotating shaft, a gear, a rack and an adjusting seat, the bottom of the adjusting seat is fixedly connected with the cross beam, the rack is vertically arranged on the adjusting seat, the synchronous rods are horizontally arranged on the two sides of the suspension arm and fixedly connected with the upper end of the suspension arm, the other end of each synchronous rod is in shaft connection with the fork arm, and the top end of the fork arm is in shaft connection with the rotating shaft. A gear is arranged on the rotating shaft, the gear is meshed with the rack, and the gear is driven by the rotating shaft to move on the rack, so that the distance between the two lifting arms is adjusted, the lifting plates at the lower ends of the lifting arms extend into the two sides of the bottom edge of an upper mold plate of the mold, and then the mold is lifted through the lifting rings on the cross beam.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical sling technical field, especially in a kind of sling for hoisting mould. BACKGROUND

[0002] Mould is the tool that blank (solid and liquid) is shaped into certain shape and size workpiece under the action of external force using specific shape, mould is extremely widely applied in forging, stamping, powder metallurgy press, pressure casting and engineering plastics, rubber, ceramic and other products's compression molding, injection molding forming processing, has the title of "mother of industry".

[0003] In actual production process, the upper mould is hoisted on the lower mould to carry out upper die and lower die, the mode usually adopted is to hook up the upper mould by lifting hook, but using lifting hook, hook ring must be set on the mould, Chinese patent with publication number CN218950841U discloses a die casting mould hoisting equipment, its clamping assembly is retracted upward by the shaft end of first electric cylinder, makes the inner plate of cross brace slide inside the outer plate of cross brace, drives the inclined support plate and vertical support plate to shrink inward, makes the lifting plate of both sides extend into the bottom edge of upper die plate of die casting mould and stick closely, then the end of second electric cylinder drives the pressing plate to move downward, makes the pressing plate press tightly on the top of upper die plate of die casting mould, by the stress of two lifting plates upward and the stress of pressing plate downward in the middle, thereby clamping upper die plate, on the other side of upper die plate of die casting mould, another clamping assembly is fixed, after fixing is completed on both sides, double-buckle wire rope and clamping assembly are moved up and down by electric hoist, but the double-buckle wire rope of the above-mentioned equipment is arranged in eight-character shape, generates oblique upward tension on clamping assembly, is not conducive to the stability of mould hoisting, and is not conducive to long-term use of equipment. CONTENT OF UTILITY MODEL

[0004] In view of the problems existing in prior art, the utility model provides a kind of sling for hoisting mould, need not set hook ring on mould, and mould will not be subjected to oblique tension in hoisting process, hoisting is stable.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A kind of sling for hoisting mould, including crossbeam, hoist arm slidably installed at the both ends of crossbeam, lifting plate fixedly installed at the bottom end of hoist arm and adjusting component for adjusting the mutual distance of two hoist arms, the both ends of crossbeam are equipped with lifting ring, the adjusting component includes synchronous rod, fork arm, rotating shaft, gear, rack and adjusting seat, the bottom of adjusting seat is fixedly connected with crossbeam, rack vertically arranged is arranged on it, the synchronous rod is horizontally arranged at the both sides of hoist arm, and is fixedly connected with the upper end of hoist arm, and the other end is connected with fork arm shaft, the top end of fork arm is connected with rotating shaft, gear is arranged on rotating shaft, and gear is engaged with rack.

[0007] The lifting device for lifting the mold, the horizontal beam is provided with the guide slot penetrating through the front and back sides symmetrically, one end of the guide slot away from the center of the horizontal beam is provided with the reset spring, and the other end of the reset spring is connected with the lifting arm.

[0008] The lifting device for lifting the mold, the lifting arm is provided with the pressing assembly, the pressing assembly comprises the fixed rod, the moving rod and the pressing plate, one end of the fixed rod is fixedly connected with the lifting arm, the other end of the fixed rod is provided with the external thread, the moving rod is provided with the internal thread matched with the external thread, the other end of the moving rod is provided with the cylindrical protrusion, the upper end of the pressing plate is provided with the fixed seat, the inside of the fixed seat is provided with the limiting slot, and the cylindrical protrusion is located in the limiting slot.

[0009] The lifting device for lifting the mold, the pressing assembly further comprises the guide sleeve, the guide sleeve is sleeved on the outside of the lifting arm and is fixedly connected with the pressing plate.

[0010] The lifting device for lifting the mold, the adjusting seat comprises the rack fixed plate and the guide slot plate, the rack fixed plate and the guide slot plate are connected through the fixed column, the bottom end is fixedly connected with the horizontal beam, the rack fixed plate is provided with the recess penetrating through the front and back sides, the rack is fixed to the side wall of the recess, the guide slot plate is provided with the guide slot penetrating through the front and back sides, one end of the rotating shaft passes through the guide slot, and the limiting block is arranged on the front and back sides of the guide slot.

[0011] The lifting device for lifting the mold, the rotating shaft is provided with the handle.

[0012] The lifting device for lifting the mold, the rubber pad is arranged on the lifting plate and the pressing plate.

[0013] The beneficial effects generated by the above technical scheme are that:

[0014] The utility model discloses a rotating shaft drives gear to move on the rack to make two fork arms drive synchronous rod and crane arm move, thus change the distance between two crane arms, make the lifting plate of crane arm lower extreme extend to the bottom side both sides of the upper mould plate of mould, then through rotating movement pole, drive the upper end surface of the pressing plate of mould, and the lifting plate and the pressing plate jointly act on the mould and fix, prevent the mould from falling when carrying and moving, and the beam is equipped with guide groove, one hand synchronous rod and the connecting shaft between fork arm move in the guide groove, the other hand the one end of guide groove away from the center of beam is equipped with reset spring, and a section in reset spring connects crane arm, when crane arm moves to the both sides and clamps the upper mould plate of mould, reset spring is compressed, and the reaction force is generated to crane arm, makes crane arm position keep fixed, the utility model discloses simple operation process can realize the carrying of the light plate mould without hook, and the utility model discloses through the lifting ring on the beam, and the crane arm only moves up and down by the beam, does not change the stress direction of crane arm because of the pulling force of lifting, and the crane arm only generates the vertical tension of mould, guarantees the stability of mould in the carrying movement process. BRIEF DESCRIPTION OF DRAWINGS

[0015] The utility model will be further explained in detail in connection with the drawings and specific embodiment.

[0016] Figure 1 It is the structure schematic diagram (not draw according to the proportion) of the utility model;

[0017] Figure 2 It is Figure 1 It is the partial close-up view (not draw according to the proportion) of A department in the utility model;

[0018] Figure 3 It is the section view (not draw according to the proportion) of the utility model in pressing assembly.

[0019] In the drawing: 1, beam;2, crane arm;3, lifting plate;4, lifting ring;5, synchronous rod;6, fork arm;7, rotating shaft;8, gear;9, rack;10, adjusting seat;11, guide groove;12, reset spring;13, fixed rod;14, movement pole;15, pressing plate;16, cylindrical convex;17, fixed seat;18, limit slot;19, guide sleeve;20, rack fixed plate;21, guide slot plate;22, guide groove;23, limit block;24, handle. Specific embodiment

[0020] For example, Figures 1-3As shown, the utility model of beam 1, sliding installation in both ends of beam 1's crane arm 2, fixed installation in the bottom end of crane arm 2's lifting plate 3 and adjust two crane arm 2 mutual distance's adjusting assembly, the both ends of beam 1 are equipped with lifting ring 4, the adjusting assembly includes synchronous lever 5, fork arm 6, rotating shaft 7, gear 8, rack 9 and adjusting seat 10, adjusting seat 10 bottom is fixedly connected with beam 1, is equipped with the rack 9 of vertical arrangement on it, synchronous lever 5 is horizontally arranged in both sides of crane arm 2, and is fixedly connected with the upper end of crane arm 2, and its other end is connected with fork arm 6 axle, the top of fork arm 6 is connected with rotating shaft 7 axle, is equipped with gear 8 on rotating shaft 7, gear 8 is engaged with rack 9, moves on rack 9 by rotating shaft 7 drive gear 8, to make two fork arms 6 drive synchronous lever 5 and crane arm 2 move, to this change the distance between two crane arms 2, make lifting plate 3 of crane arm 2 lower end extend into the bottom side of mould upper die plate two sides, then hoist through the lifting ring 4 on beam 1, crane arm 2 only is driven up and down by beam 1, will not change the stress direction of crane arm 2 because of the pulling force of hoisting, so the utility model compared with prior art, the hoisting of mould is more stable.

[0021] As Figure 1 Shown, the beam 1 is equipped with the guide groove 11 symmetrically through both sides, the connecting shaft of synchronous lever 5 and fork arm 6 moves in guide groove 11, one end of guide groove 11 away from the center of beam 1 is equipped with reset spring 12, the other end of reset spring 12 is connected crane arm 2, when crane arm 2 moves to both sides and clamps mould upper die plate, reset spring 12 is compressed, and generates reaction force to crane arm 2, makes crane arm 2 position keep fixed, avoids crane arm 2 to move to both sides because of rotating shaft 7 displacement, further improves the stability of mould in the process of carrying movement.

[0022] As Figure 1 、 3 Shown, the crane arm 2 is equipped with abutting pressure subassembly, the abutting pressure subassembly includes fixed rod 13, moving rod 14 and pressure plate 15, one end of fixed rod 13 is fixedly connected with crane arm 2, and the other end is equipped with external thread, moving rod 14 is equipped with the internal thread that is matched with it, and the other end is equipped with cylindrical convex 16, the upper end of pressure plate 15 is equipped with fixed seat 17, the inside of fixed seat 17 is equipped with limit groove 18, cylindrical convex 16 is located in limit groove 18, moves up and down by rotating moving rod 14 drive pressure plate 15, and abuts pressure mould.

[0023] The abutting pressure subassembly further includes guide sleeve 19, the guide sleeve 19 is sleeved on the outside of crane arm 2, and is fixedly connected with pressure plate 15.

[0024] As Figure 2As shown, the adjusting seat 10 includes a rack fixing plate 20 and a guide groove plate 21, the rack fixing plate 20 and the guide groove plate 21 are connected through a fixing column, the bottom end is fixedly connected with the cross beam 1, the rack fixing plate 20 is provided with a groove penetrating through the front and back sides, the rack 9 is fixed to the side wall of the groove, the guide groove plate 21 is provided with a guide groove 22 penetrating through the front and back sides, one end of the rotating shaft 7 passes through the guide groove 22, and the rotating shaft 7 is provided with a limiting block 23 at the front and back sides of the guide groove 22.

[0025] As shown in the figure, Figure 2 As shown, the rotating shaft 7 is provided with a handle 24 at one end away from the limiting block 23, and a worker can manually rotate the handle 24 to adjust the distance between the two lifting arms 2.

[0026] The lifting plate 3 and the pressing plate 15 are provided with rubber pads (not shown in the figure) on the side in contact with the mold, the friction with the mold upper plate is increased, and the stability during hoisting is improved.

[0027] Working process:

[0028] The lifting rings 4 on the two sides of the cross beam 1 are connected to the hooks of the crane through the oil wire rope, then the handle 24 is manually rotated, the rotating shaft drives the gear 8 to move downward along the rack 9, the angle between the two fork arms 6 is increased, and the synchronous rod 5 and the lifting arm 2 are pushed to move to the two sides, the lifting plate 3 at the lower end of the lifting arm 2 extends into the bottom edges on the two sides of the mold upper plate, and at the same time, the return spring 12 is compressed, the lifting arm 2 is reversely pressed, the position of the lifting arm 2 is kept fixed during hoisting, the moving rod 14 is rotated, the pressing plate 15 moves downward along the lifting arm 2, and the mold is pressed until the mold is fixed; after the fixing is completed, the mold is hoisted by the crane.

[0029] The above examples are only used to illustrate the technical solutions of the application, and not to limit them; although the application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the protection scope of the technical solutions of the embodiments of the application.

Claims

1. A lifting device for lifting a mould, comprising a beam (1), lifting arms (2) slidingly mounted at the ends of the beam (1), lifting plates (3) fixedly mounted at the bottom ends of the lifting arms (2), and an adjusting assembly for adjusting the mutual distance of the lifting arms (2), characterized in that: The horizontal beam (1) is provided with lifting rings (4) at both ends, the adjusting assembly comprises a synchronous rod (5), a fork arm (6), a rotating shaft (7), a gear (8), a rack (9) and an adjusting seat (10), the bottom of the adjusting seat (10) is fixedly connected with the horizontal beam (1), a rack (9) vertically arranged is arranged on the adjusting seat (10), the synchronous rod (5) is horizontally arranged on both sides of the lifting arm (2) and is fixedly connected with the upper end of the lifting arm (2), the other end of the synchronous rod (5) is connected with the fork arm (6), the top end of the fork arm (6) is connected with the rotating shaft (7), the rotating shaft (7) is provided with the gear (8), and the gear (8) is engaged with the rack (9).

2. The spreader for hoisting a mold according to claim 1, characterized in that: The horizontal beam (1) is provided with guiding grooves (11) penetrating through the front and back sides symmetrically, one end of the guiding groove (11) away from the center of the horizontal beam (1) is provided with a reset spring (12), and the other end of the reset spring (12) is connected with the lifting arm (2).

3. A spreader for lifting a mould according to claim 1 or 2, characterised in that: The lifting arm (2) is provided with a pressing assembly, the pressing assembly comprises a fixed rod (13), a moving rod (14) and a pressing plate (15), one end of the fixed rod (13) is fixedly connected with the lifting arm (2), the other end of the fixed rod (13) is provided with an external thread, the moving rod (14) is provided with an internal thread matched with the external thread, and the other end of the moving rod (14) is provided with a cylindrical protrusion (16), the pressing plate (15) is provided with a fixed seat (17) at the upper end, the fixed seat (17) is internally provided with a limiting groove (18), and the cylindrical protrusion (16) is located in the limiting groove (18).

4. The spreader for hoisting a mold according to claim 3, characterized in that: The pressing assembly further comprises a guiding sleeve (19), the guiding sleeve (19) is sleeved outside the lifting arm (2) and is fixedly connected with the pressing plate (15).

5. The spreader for hoisting a mold according to claim 4, characterized in that: The adjusting seat (10) comprises a rack fixing plate (20) and a guiding groove plate (21), the rack fixing plate (20) and the guiding groove plate (21) are connected through a fixed column, and the bottom end is fixedly connected with the horizontal beam (1), the rack fixing plate (20) is provided with grooves penetrating through the front and back sides, the rack (9) is fixed to the side wall of the groove, the guiding groove plate (21) is provided with guiding grooves (22) penetrating through the front and back sides, one end of the rotating shaft (7) penetrates through the guiding groove (22), and limiting blocks (23) are arranged on the front and back sides of the guiding groove (22).

6. The spreader for hoisting a mold according to claim 5, characterized in that: The rotating shaft (7) is provided with a handle (24).

7. The spreader for hoisting a mold according to claim 6, characterized in that: Rubber pads are arranged on the lifting plate (3) and the pressing plate (15).

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